Surface texture reading access checking system

Details Surface texture reading access checking system Surface texture reading access checking system

1985-07-16

1987-06-30

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

235382, G06F 704, G06K 500

Patent

active

046774351

ABSTRACT:
Surface texture reading access checking system. The identification information attached to each support object serving as a key is constituted by the texture of a surface portion of said object. A reader reads this information and communicates it to the processing means, which carry out a comparison between the signal read and recorded signals. Application to the production of locks or access checking means for data processing, telematic, banking and similar systems.

REFERENCES:
patent: 3637990 (1972-01-01), Bayha et al.
patent: 4218674 (1980-08-01), Brosow
patent: 4298792 (1981-11-01), Granholm et al.
patent: 4519228 (1985-05-01), Sornes
patent: 4568936 (1986-02-01), Goldman
"Surface Topography, A Remarkable Method for the Identification of Seals or Structures in General", B. C. D'Agraives, pp. 403-409.

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